Home / 16,387.94-22,617.28-9,315.42

Finding the Fourth Proportional to 16,387.94, 22,617.28 and 9,315.42

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Solution

The fourth proportional to 16,387.94, 22,617.28 and 9,315.42 is: 12,856.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,387.94 : 22,617.28 = 9,315.42 : x
  2. Step 2: Convert to fraction form
    16,387.94/22,617.28 = 9,315.42/x
  3. Step 3: Cross multiply
    16,387.94x = 22,617.28 × 9,315.42
  4. Step 4: Simplify right side
    16,387.94x = 210,689,415.88
  5. Step 5: Solve for x
    x = 210,689,415.88/16,387.94
  6. Step 6: Final answer
    x = 12,856.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.